Once upon a time in Japan
I think I missed this the last time I posted about Kyoto U's incredible online facsimile collection: the 今昔物語集 (Konjaku monogatari shuu, or "Collection of tales of long ago"). The top section listed on that page, 透過インタフェース版 ("Transparent interface edition") has some encoding problems, but it's worth struggling through to get to the "glass view", which works like this.
amida:
This is so cool I forgive it for not working with Firefox and making me open up IE. Kill Bill's browser!